WO2007060124A3 - A driving arrangement for led cells - Google Patents

A driving arrangement for led cells Download PDF

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Publication number
WO2007060124A3
WO2007060124A3 PCT/EP2006/068493 EP2006068493W WO2007060124A3 WO 2007060124 A3 WO2007060124 A3 WO 2007060124A3 EP 2006068493 W EP2006068493 W EP 2006068493W WO 2007060124 A3 WO2007060124 A3 WO 2007060124A3
Authority
WO
WIPO (PCT)
Prior art keywords
led
led cells
driving arrangement
magnetic element
generator
Prior art date
Application number
PCT/EP2006/068493
Other languages
French (fr)
Other versions
WO2007060124A2 (en
Inventor
Nicola Zanforlin
Original Assignee
Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh
Nicola Zanforlin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh, Nicola Zanforlin filed Critical Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh
Publication of WO2007060124A2 publication Critical patent/WO2007060124A2/en
Publication of WO2007060124A3 publication Critical patent/WO2007060124A3/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/375—Switched mode power supply [SMPS] using buck topology
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/39—Circuits containing inverter bridges
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

A driving arrangement for feeding a current generated by a high frequency generator (10) to a plurality of LED cells (50R, 50G, 50B) each including at least one respective LED, includes: - a magnetic element (35) in the flowpath of the current from the generator (10) to the LED cells (50R, 50G, 50B), - at least two electronic switches (30a, 30b) arranged for connection in a half bridge configuration to the output of the generator (10) and defining a common output node (31) to which the magnetic element (35) is connected, - a plurality of LED channels (1, 2, 3; 1', 2', 3') each for feeding a respective one of the LED cells (50R, 50G, 50B), wherein the LED channels (1, 2, 3; 1', 2', 3') are arranged in a parallel configuration therebetween starting from the magnetic element (35).
PCT/EP2006/068493 2005-11-22 2006-11-15 A driving arrangement for led cells WO2007060124A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05425825A EP1791398A1 (en) 2005-11-22 2005-11-22 A driving arrangement for LED cells
EP05425825.6 2005-11-22

Publications (2)

Publication Number Publication Date
WO2007060124A2 WO2007060124A2 (en) 2007-05-31
WO2007060124A3 true WO2007060124A3 (en) 2007-12-21

Family

ID=35695586

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/068493 WO2007060124A2 (en) 2005-11-22 2006-11-15 A driving arrangement for led cells

Country Status (3)

Country Link
EP (1) EP1791398A1 (en)
TW (1) TW200725519A (en)
WO (1) WO2007060124A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI414206B (en) * 2009-09-07 2013-11-01 Ind Tech Res Inst Light adjustment circuit for alternating-current light emitting diode
US20120154260A1 (en) * 2009-09-09 2012-06-21 Koninklijke Philips Electronics N.V. Driving LED's

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0660648A1 (en) * 1993-12-27 1995-06-28 Illinois Tool Works Inc. Dimming circuit for a LED
US20020070914A1 (en) * 2000-12-12 2002-06-13 Philips Electronics North America Corporation Control and drive circuit arrangement for illumination performance enhancement with LED light sources
EP1215944A1 (en) * 2000-12-14 2002-06-19 General Electric Company Light emitting diode power supply
US20030122502A1 (en) * 2001-12-28 2003-07-03 Bernd Clauberg Light emitting diode driver

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10103611B4 (en) 2001-01-26 2013-12-19 Insta Elektro Gmbh Circuit arrangement for operating a plurality of bulbs
WO2004100612A1 (en) 2003-05-07 2004-11-18 Koninklijke Philips Electronics N.V. Single driver for multiple light emitting diodes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0660648A1 (en) * 1993-12-27 1995-06-28 Illinois Tool Works Inc. Dimming circuit for a LED
US20020070914A1 (en) * 2000-12-12 2002-06-13 Philips Electronics North America Corporation Control and drive circuit arrangement for illumination performance enhancement with LED light sources
EP1215944A1 (en) * 2000-12-14 2002-06-19 General Electric Company Light emitting diode power supply
US20030122502A1 (en) * 2001-12-28 2003-07-03 Bernd Clauberg Light emitting diode driver

Also Published As

Publication number Publication date
EP1791398A1 (en) 2007-05-30
TW200725519A (en) 2007-07-01
WO2007060124A2 (en) 2007-05-31

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